CVE-2023-45648
October 10, 2023
Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.81 and from 8.5.0 through 8.5.93 did not correctly parse HTTP trailer headers. A specially
crafted, invalid trailer header could cause Tomcat to treat a single
request as multiple requests leading to the possibility of request
smuggling when behind a reverse proxy.
Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fix the issue.
Affected Packages
org.apache.tomcat:tomcat (JAVA):
Affected version(s) >=10.1.0-M1 <10.1.14Fix Suggestion:
Update to version 10.1.14org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=10.1.0-M1 <10.1.14Fix Suggestion:
Update to version 10.1.14org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=8.5.0 <8.5.94Fix Suggestion:
Update to version 8.5.94org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=11.0.0-M1 <11.0.0-M12Fix Suggestion:
Update to version 11.0.0-M12org.apache.tomcat:tomcat (JAVA):
Affected version(s) >=9.0.0.M1 <9.0.81Fix Suggestion:
Update to version 9.0.81org.apache.tomcat:tomcat (JAVA):
Affected version(s) >=8.5.0 <8.5.94Fix Suggestion:
Update to version 8.5.94org.apache.tomcat:tomcat (JAVA):
Affected version(s) >=11.0.0-M1 <11.0.0-M12Fix Suggestion:
Update to version 11.0.0-M12org.apache.tomcat.embed:tomcat-embed-core (JAVA):
Affected version(s) >=9.0.0.M1 <9.0.81Fix Suggestion:
Update to version 9.0.81Additional Notes
The description of this vulnerability differs from MITRE.
Related Resources (13)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Input Validation
EPSS
Base Score:
62.96
